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🔥 Mold your safety, seal your peace of mind.
3M Fire Barrier Moldable Putty Stix MP+ is a high-performance, intumescent firestop putty stick designed for professional use. Offering up to 4 hours of fire resistance and an STC 56 sound rating, it provides a durable, re-enterable seal that prevents fire, smoke, and noise penetration in fire-rated assemblies. Ready-to-use and noncorrosive, it ensures long-lasting protection and easy maintenance in industrial and occupational settings.



| Customer Reviews | 4.8 out of 5 stars 244 Reviews |
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